Medium sized waxcap with slightly greasy/dry cap, greyish in colour and often with irregular margin. Stipe is whitish, dy, fibrous and with a yellow base.  Gills are decurrent 

There are several other species of waxcaps with grey caps, but the yellow base to the stipe is distinctive

Your photogrpahs must show the cap, gills and full length of the stipe

old grassland

October-November